Improvement in spark-arresters



w, PHILLIPS. SparbArre ste'i's,

,P'atentedMrch3.1874

ATTORNEYS.

WESLEY PHILLIPs, or MORRISANIA, NEW YORK.

IMPROVEMENT IN SPARKARRESTERS- Specification forming part of LettersPatent No. 148,133, dated March 3, 1874; application filed January 10,1874.

To all whom it may concern:

Be it known that I, WEsLEY PHILLIPs, of

- Morrisania, in the county of Westchester and State of New York, haveinvented a new and useful Improvement in Spark-Arresters, of which thefollowing is a specification:

The present invention relates to newand useful improvements in sparkarresters for steam-boilers, more especially designed for 10-comotiveboilers, but adapted to stationary and marine boilers; andconsists of a sectional flare-pipe inside of a lower screen-pipe formedof wire-gauze, or wire cloth, and in a wiregauze, or screen, or pipe,which rests on the bottom of the smokebox, and in another tube or pipeof wire-netting at or near the top of the smoke-stack. It also consistsin the arrangement and combination of parts, hereinafter described, bywhich an open exhaust is obtained. 7

I11 the drawing, Figure 1 is a vertical section of Fig. 2 taken on theline 00 w, and Fig. 2 is an elevation, showing a portion of the boilerin section.

Similar letters of reference indicate corresponding parts. I

A represents the boiler. 13 is the smokebox at the end of the boiler. Ois the smokeflue. E is the steam-exhaust nozzle. F is a flare-pipe,composed of sections Gr, connected together by vertical straps with anannular opening around the top of each. This flarepipe is surrounded byan open pipe, I, (which it designed to protect,) made of wire-cloth, orsimilar material. The open-work pipe I is connected with the lower endof the smokepipe G. The smoke-pipe (l is surrounded by the pipe J, whichpipe has a flaring base, K, which receives the sparks and smoke as theycome from the fiues of the boiler, as indicated by the arrows 2. L is anannular space between the smoke-flue O and the pipe J. As the productsof combustion enter this space they are screened or strained through thewire cloth pipe I by the vacuum produced, leaving the sparks and othersolid particles in the space L, while the smoke or gaseous productsenter the smoke-pipe and are carried up by the exhaust. The sectionalflare-pipe is placed within the wire pipe I, to prevent the steam frominjuring that pipe. M is a pipe made of woven wire, or equivalentmaterial, which is placed at the top of the stacks. The ex haust willcreate a draft through this pipe which will draw the sparks upward withmuch force. N is a semicircular cap on the top of of the smoke-pipe G,against the lower eoncave side of which the sparks strike and drop bytheir own gravity to the bottom of smokepipe 0, from which they areremoved through the discharge-tubes P P. The arrows 2, indicate thecourse of the sparks, and the arrows l the course of the smoke andexhaust.

It will be seen that, by this construction and arrangement, a directopen exhaust is obtained. The smoke and gaseous products of combustionare separated at the base or in the smokeboX, while the sparks aredelivered at the base of the smoke-stack, from whence they are readilyremoved.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. In combination with the reticulated pipe I,steam-jet nozzle E, and pipe 0, the surrounding closed pipe J, extendinginto the casing or spark-receptacle O, and open at both ends,sul'istantially as herein shown and described, and for the purposespecified.

2. In combination with the reticulated pipe I, surrounding tube J, andexhaust-nozzle E, the superposed concentrically-arranged short tubes orfrustums of cones F, for creating a draft and for preventing the steamfrom act ing directly upon the pipe I, as and for the purpose specified.

3; In combination with the smoke-discharge pipe 0 and stacks, thereticulated cylinder M, located at the top of the stack, as and for thepurpose specified.

4. The smoke-discharge pipe C, provided with a deflecting cap, N, at itsupper end, ar.

